Homemade Sensitive Listening Device
Buy Now Online
This is a file that tells how Mike from Michigan built his very sensitive listening device .
Can you find a listening device in the picture??? Look closer --There is a clue in the second picture .Once built this listening device was able to hear a low whisper at 1200+ feet in open line of site -- 600' thru trees/brush. It can be built in almost no time at all .
Long Range Listening Device
DOWNLOAD The Listening Device
PLUS ALL 25+ OTHER DIY Handyman Project Guides